Astronaut Scott Kelly Returns to Houston after a Year in Space

Astronaut Scott Kelly Returns to Houston after a Year in Space

One-Year Crew Returns to Earth

The Soyuz TMA-18M spacecraft is seen as it lands with Expedition 46 Commander Scott Kelly of…

Last Sunrise From a Year in Space

NASA astronaut Scott Kelly shared a series of five sunrise photographs on Tuesday, March 1, 2016,…

Different Worlds

Although Tethys and Janus both orbit Saturn and are both made of more or less the…

Hubble’s Blue Bubble

The distinctive blue bubble appearing to encircle WR 31a is a Wolf–Rayet nebula — an interstellar…

Mathematician Katherine Johnson at Work

NASA research mathematician Katherine Johnson is photographed at her desk at Langley Research Center in 1966.…

Flying Through the Aurora’s Green Fog

Expedition 46 crew member Tim Peake of the European Space Agency (ESA) shared a stunning image…

The Ice Fields of Patagonia

This image, acquired by the Operational Land Imager (OLI) on Landsat 8, shows the glaciers of…

Three Times the Fun

Three of Saturn's moons -- Tethys, Enceladus and Mimas -- are captured in this group photo…

Jarosite in the Noctis Labyrinthus Region of Mars

This image, acquired on Nov. 24, 2015 by the High Resolution Imaging Science Experiment (HiRISE) camera…